Supergroups rarely achieve intended goals of rising above respective reputation, but Atoms for Peace transcend expectations with their debut, "Amok."

The band--Radiohead's Thom Yorke, Red Hot Chili Peppers' Flea, R.E.M. alum Joey Waronker and Forro in the Dark percussionist Mauro Refosco--assembles alongside veteran producer Nigel Godrich for a cool blue, electronic confection shaded with live instrumentation. Amok, the closest relative to Yorke's 2006 solo bow, The Eraser, coddles synthetic sounds from guitars and drums to form demi-ambient soundscapes that recall the most relaxed of Radiohead.

Yorke sounds focused on Amok, amplifying his falsetto on the glitchy "Unless" and slipping into the removed delivery of "Ingenue," while the arrangements straddle analog and technological, often blurring the line between guitar and keys ("Stuck Together Pieces," "Before Your Very Eyes").

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